On the Effect of Stress Triaxiality on Void Coalescence |
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| Authors: | Yang Zhang Zengtao Chen |
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| Affiliation: | (1) Department of Mechanical Engineering, University of New Brunswick, Fredericton, New Brunswick, Canada |
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| Abstract: | Failure of ductile materials is often related to coalescence of microscopic voids. The stress triaxiality is one of the primary factors that influence the coalescence. In the present work, a 3D unit cell model is employed to investigate this effect. The cell model contains two aligned voids. A coalescence criterion is proposed in which the critical void volume fraction is expressed in terms of stress triaxiality. |
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| Keywords: | Ductile material void coalescence stress triaxiality |
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